词根词缀:centro-, centr-, centri-, kentro-
【来源及含义】Greek > Latin: center; middle point, mid point; focus, focal point, focalize; zero in on
【相关描述】This element originally meant "sharp point, goad" or "spur".
【同源单词】acentric, acentric, acrocentric, allocentric, ambulatory surgery center, amphicentric
词根词缀:com-, co-, cog-, col-, con-, cor-
【来源及含义】Latin: together, together with, with
【相关描述】The prefix com- is assimilated to co- before h, w, and all vowels:
The prefix com- becomes, cog- before g: cognition, [co + gnoscere, "to know"], et al.
The prefix com- becomes, col- before l: colloquial, et al.
The prefix com- becomes, con- before c, d, g, j, n, q, s, t, v: covivant, et al.
The prefix com- becomes, cor- before r: corrigible, et al.
【相关词根词缀】 Related "together" units: greg-; inter-; struct-.
【同源单词】abscond, abscondee, anticorrosive, bioconcentration, coadjutant, coadjuting